Home / 236,819.88-326,807.57-129,387.60

Finding the Fourth Proportional to 236,819.88, 326,807.57 and 129,387.60

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Solution

The fourth proportional to 236,819.88, 326,807.57 and 129,387.60 is: 178,552.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,819.88 : 326,807.57 = 129,387.60 : x
  2. Step 2: Convert to fraction form
    236,819.88/326,807.57 = 129,387.60/x
  3. Step 3: Cross multiply
    236,819.88x = 326,807.57 × 129,387.60
  4. Step 4: Simplify right side
    236,819.88x = 42,284,847,467.60
  5. Step 5: Solve for x
    x = 42,284,847,467.60/236,819.88
  6. Step 6: Final answer
    x = 178,552.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.